Encrypts a string. Uses a symmetric key-based algorithm, in which the same key is used to encrypt and decrypt a string. The security of the encrypted string depends on maintaining the secrecy of the key. Uses an XOR-based algorithm that uses a pseudo-random 32-bit key, based on a seed passed by the user as a function parameter.
String; can be much longer than the original string.
Other functions, String functions
Encrypt(string, seed)
Parameter | Description |
---|---|
string |
String to encrypt |
seed |
String. Seed used to generate 32-bit encryption key. |
<h3>Encrypt Example</h3> <p>This function allows for the encryption and decryption of a string. Try it by entering a string and a key to see the results. <cfif IsDefined("FORM.myString")> <cfset string = FORM.myString> <cfset key = FORM.myKey> <cfset encrypted = encrypt(string, key)> <cfset decrypted = decrypt(encrypted, key)> <cfoutput> <h4><B>The string:</B></h4> #string# <br> <h4><B>The key:</B></h4> #key#<br> <h4><B>Encrypted:</B></h4> #encrypted#<br> <h4><B>Decrypted:</B></h4> #decrypted#<br> </cfoutput> </cfif> <form action = "encrypt.cfm"> <p>Input your key: <p><input type = "Text" name = "myKey" value = "foobar"> <p>Input your string to be encrypted: <p><textArea name = "myString" cols = "40" rows = "5" WRAP = "VIRTUAL"> This string will be encrypted (try typing some more) </textArea> <input type = "Submit" value = "Encrypt my String"> </form>